期刊文献+
共找到29,152篇文章
< 1 2 250 >
每页显示 20 50 100
Parental Educational Expectations,Academic Pressure,and Adolescent Mental Health:An Empirical Study Based on CEPS Survey Data 被引量:1
1
作者 Tao Xu Fangqiang Zuo Kai Zheng 《International Journal of Mental Health Promotion》 2024年第2期93-103,共11页
Background:This study aimed to investigate the relationship between parental educational expectations and adolescent mental health problems,with academic pressure as a moderating variable.Methods:This study was based ... Background:This study aimed to investigate the relationship between parental educational expectations and adolescent mental health problems,with academic pressure as a moderating variable.Methods:This study was based on the baseline data of the China Education Panel Survey,which was collected within one school year during 2013–2014.It included 19,958 samples from seventh and ninth graders,who ranged from 11 to 18 years old.After removing missing values and conducting relevant data processing,the effective sample size for analysis was 16344.The OLS(Ordinary Least Squares)multiple linear regression analysis was used to examine the relationship between parental educational expectations,academic pressure,and adolescents’mental health problems.In addition,we established an interaction term between parents’educational expectations and academic pressure to investigate the moderating effect of academic stress.Results:The study found that adolescents whose parents had high educational expectations reported less mental health problems.(β=−0.195;p<0.001).Additionally,adolescents who had high academic pressure reported more mental health problems.(β=0.649;p<0.001).Furthermore,the study found that academic pressure had a significant moderating effect on the relationship between parental educational expectations and adolescents’mental health problems(β=0.082;p<0.001).Conclusion:Parental educational expectations had a close relationship with adolescents’mental health problems,and academic pressure moderated this relationship.For those adolescents with high levels of academic pressure,the association between high parental educational expectations and mental health problems became stronger.On the contrary,for those adolescents with low levels of academic pressure,the association between high parental educational expectations and mental health problems became weaker.These findings shed new light on how parental educational expectations affected adolescent mental health problems and had significant implications for their healthy development. 展开更多
关键词 parental educational expectations academic pressure adolescent mental health problems
下载PDF
Childbirth expectations and correlates at the final stage of pregnancy in Chinese expectant parents
2
作者 Xian Zhang Hong Lu 《International Journal of Nursing Sciences》 2014年第2期151-156,共6页
Purpose:To explore the childbirth expectations of Chinese expectant parents during their transition to parenthood.Methods:A cross-sectional descriptive survey was used through the Chinese version of the Childbirth Exp... Purpose:To explore the childbirth expectations of Chinese expectant parents during their transition to parenthood.Methods:A cross-sectional descriptive survey was used through the Chinese version of the Childbirth Expectations Questionnaire.A total of 240 expectant parents were recruited when they were admitted to the obstetric units waiting for delivery at a large Maternal and Child Health care Center in Beijing,and 210 couples completed the questionnaires,yielding a response rate of 87.5%.Results:The expectant parents had a high level of childbirth expectations towards caregiving environment,spousal support,control and participation and medical support.Conversely,their expectations toward labor pain and their own ability to cope with the pain were relatively low.Expectant fathers’childbirth expectations and preference of partner’s accompany were two significant predictors of expectant mothers’childbirth expectations,explaining 18.9%and 3.3%of the total variance,respectively.While expectant mothers’childbirth expectations was the only significant predictor of expectant fathers’childbirth expectations.Conclusion:This study adds to understanding of the childbirth expectations of Chinese expectant parents.It is suggested that maternity healthcare providers pay close attention to the childbirth expectations of expectant parents,and improve the nursing care service to promote positive childbirth experiences and satisfaction of expectant parents. 展开更多
关键词 Childbirth expectation CHINESE expectant parents Maternity care
下载PDF
Are there differences between the expectations of parents, nurses and physicians when using music in NICU?
3
作者 Polkki Tarja Korhonen Anne +2 位作者 Saarela Timo Peltoniemi Outi Laukkala Helena 《Open Journal of Nursing》 2012年第3期215-221,共7页
This paper aimed to describe and explain the expectations concerning the use of music in NICU from the viewpoints of parents, nurses and physicians. The relevant questionnaires were distributed to 836 participants who... This paper aimed to describe and explain the expectations concerning the use of music in NICU from the viewpoints of parents, nurses and physicians. The relevant questionnaires were distributed to 836 participants who were recruited from the country’s five university hospitals (n = 508, response rate 61). Slightly over half of the participants preferred recorded music versus live music in the NICU. They strongly expected that their preferred music could be beneficial both for the infants, parents and staff. The parents agreed most that live music is the most suitable choice for infants (p < 0.001), and that the music could especially benefit the infant (p < 0.001) and parents (p < 0.001) compared with the nurses’ and physicians’ preferences. Some background details such as age, average length of time listening to music, musical training and experiences of using music provided significant explanations for the participants’ expectations. In conclusion, there were significant differences between the groups of the respondents concerning the type of the preferred music and its expected effects. This highlights the importance of discussion with the caregivers when taking music into regular use in the neonatal intensive care units. 展开更多
关键词 MUSIC Neonatal Intensive Care parents Health Care Providers expectations
下载PDF
Association of preschool children behavior and emotional problems with the parenting behavior of both parents 被引量:1
4
作者 Su-Mei Wang Shuang-Qin Yan +4 位作者 Fang-Fang Xie Zhi-Ling Cai Guo-Peng Gao Ting-Ting Weng Fang-Biao Tao 《World Journal of Clinical Cases》 SCIE 2024年第6期1084-1093,共10页
BACKGROUND Parental behaviors are key in shaping children’s psychological and behavioral development,crucial for early identification and prevention of mental health issues,reducing psychological trauma in childhood.... BACKGROUND Parental behaviors are key in shaping children’s psychological and behavioral development,crucial for early identification and prevention of mental health issues,reducing psychological trauma in childhood.AIM To investigate the relationship between parenting behaviors and behavioral and emotional issues in preschool children.METHODS From October 2017 to May 2018,7 kindergartens in Ma’anshan City were selected to conduct a parent self-filled questionnaire-Health Development Survey of Preschool Children.Children’s Strength and Difficulties Questionnaire(Parent Version)was applied to measures the children’s behavioral and emotional performance.Parenting behavior was evaluated using the Parental Behavior Inventory.Binomial logistic regression model was used to analyze the association between the detection rate of preschool children’s behavior and emotional problems and their parenting behaviors.RESULTS High level of parental support/participation was negatively correlated with conduct problems,abnormal hyperactivity,abnormal total difficulty scores and abnormal prosocial behavior problems.High level of maternal support/participation was negatively correlated with abnormal emotional symptoms and abnormal peer interaction in children.High level of parental hostility/coercion was positively correlated with abnormal emotional symptoms,abnormal conduct problems,abnormal hyperactivity,abnormal peer interaction,and abnormal total difficulty scores in children(all P<0.05).Moreover,paternal parenting behaviors had similarly effects on behavior and emotional problems of preschool children compared with maternal parenting behaviors(all P>0.05),after calculating ratio of odds ratio values.CONCLUSION Our study found that parenting behaviors are associated with behavioral and emotional issues in preschool children.Overall,the more supportive or involved the parents are,the fewer behavioral and emotional problems the children experience;conversely,the more hostile or controlling the parents are,the more behavioral and emotional problems the children face.Moreover,the impact of fathers’parenting behaviors on preschool children’s behavior and emotions is no less significant than that of mothers’parenting behaviors. 展开更多
关键词 CHILDREN Preschool age parentING BEHAVIORAL parenting problems
下载PDF
The Development of a Feeding Coparenting Scale for Japanese Parents of Fifth- and Sixth-Grade Elementary School Children
5
作者 Maiko Yasuzato Tae Kawahara +2 位作者 Yuichi Nakayama Cin Cin Tan Akemi Yamazaki 《Open Journal of Nursing》 2024年第1期27-39,共13页
Aim: Recently, the role of feeding coparenting has gained attention in the child eating research field. The Feeding Coparenting Scale (FCS), a measure of how caregivers interact with their partners when feeding their ... Aim: Recently, the role of feeding coparenting has gained attention in the child eating research field. The Feeding Coparenting Scale (FCS), a measure of how caregivers interact with their partners when feeding their children was developed in the United States in 2019. However, there is no valid and reliable measure to assess feeding coparenting among caregivers of school-aged children in Japan. Therefore, this study aimed to develop a Japanese version of the FCS (FCS-J) questionnaire for caregivers with school-aged children. Methods: This was a web-based cross-sectional survey completed by caregivers of children aged 10-12 years. A preliminary survey using interviews and a web-based survey was conducted and found that the translated items of the FCS into Japanese were understandable to Japanese people. The developed survey was administered to parents of children at an elementary school. The reliability of the survey was assessed using both test-retest reliability and internal consistency analysis. Exploratory factor analysis was used to test construct validity, and known population validity was examined in relation to attributes, marital satisfaction, and feeding tasks. Results: Findings with 135 parents of school-aged children showed good internal reliability and validity of the FCS-J. The mean score for the overall FCS-J score was 46.2 (SD = 6.2), with Cronbach’s α of 0.72. For the subscales, Cronbach’s α ranged from 0.75 to 0.79. In sum, the present study’s results support the three-factor structure of the FCS in Japanese caregivers in Japan. Conclusions: The developed FCS-J was found to have a certain degree of reliability and validity. In this study, a Japanese version of the FCS-J was developed. . 展开更多
关键词 CHILD Coparenting parents Feeding Coparenting
下载PDF
Expérience des parents faceàl’accompagnement pédiatrique en HAD:étude exploratoire qualitative Parents’Experience of Pediatric Home Care:A Qualitative Exploratory Study
6
作者 Laure Salomé Jérémy Martin +1 位作者 Camille Baussant-Crenn Cécile Flahault 《Psycho-Oncologie》 SCIE 2024年第2期137-146,共10页
Aim:To investigate parents’experience of home care for children in oncology in order to identify the benefits,expectations,and possible difficulties associated.Material and methods:A qualitative method was adopted,wi... Aim:To investigate parents’experience of home care for children in oncology in order to identify the benefits,expectations,and possible difficulties associated.Material and methods:A qualitative method was adopted,with non-directive interviews conducted with nine participants,then analyzed using thematic content analysis.Results:The main recurring themes in the discourse include:(1)relief,(2)positive representation of home,(3)positive representation of home care,and(4)negative representation of home care.For these parents,home care appears to be positive overall,even though the introduction of home care is often reported as a source of stress for them.Conclusion:These results must be interpreted with caution,but they do support previous research and highlight certain recommendations for further improving this experience,particularly for parents,but also for the sick child and the family. 展开更多
关键词 Home care parents ONCOLOGY PEDIATRIC children
下载PDF
Childhood inflammatory bowel disease: Parental concerns and expectations 被引量:1
7
作者 AS Day KE Whitten TD Bohane 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第7期1028-1031,共4页
AIM: To document the concerns and expectations of parents of children with inflammatory bowel disease (IBD)within the context of a multidisciplinary IBD clinic, and to highlight the importance of a holistic approach t... AIM: To document the concerns and expectations of parents of children with inflammatory bowel disease (IBD)within the context of a multidisciplinary IBD clinic, and to highlight the importance of a holistic approach to the care of these children.METHODS: The parents of 60 children with IBD were surveyed by mailed questionnaire. Parents were asked to provide details of their concerns regarding their child's condition and to express their expectations of medical care. In addition, enquiry was made in respect to the respondents' learning about IBD.RESULTS: Forty-six questionnaires (77%) returned. Fiftytwo percent of the patients were male. Patients were aged a mean of 10.9 (±4.1) years and diagnosed at an average age of 2.1 (±1.8) years previously. The most common concerns expressed by the parents related to the side- effects of medications and the future prospects for their child. Overall, parents were satisfied with aspects of care within the IBD clinic but many suggested additional personnel such as counselors or educators should be available. Parents also reported the need for continuing education and easy access to up-to-date information.CONCLUSION: Parents of children and adolescents with IBD have many common concerns regarding their child's condition. On-going attention to holistic care, including psychosocial and educational elements for patients and families, is appropriate in the context of the chronic and unpredictable nature of IBD. 展开更多
关键词 CHILDREN Inflammatory bowel disease parents CLINIC
下载PDF
Main focus of parents of children with attention deficit hyperactivity disorder and the effectiveness of early clinical screening
8
作者 Jia-Wen Li Ke Gao +1 位作者 Xiao-Yun Yang Zhi-Fei Li 《World Journal of Clinical Cases》 SCIE 2024年第19期3752-3759,共8页
BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a common mental and behavioral disorder among children.AIM To explore the focus of attention deficit hyperactivity disorder parents and the effectiveness of ... BACKGROUND Attention deficit hyperactivity disorder(ADHD)is a common mental and behavioral disorder among children.AIM To explore the focus of attention deficit hyperactivity disorder parents and the effectiveness of early clinical screening METHODS This study found that the main directions of parents seeking medical help were short attention time for children under 7 years old(16.6%)and poor academic performance for children over 7 years old(12.1%).We employed a two-stage experiment to diagnose ADHD.Among the 5683 children evaluated from 2018 to 2021,360 met the DSM-5 criteria.Those diagnosed with ADHD underwent assessments for letter,number,and figure attention.Following the exclusion of ADHD-H diagnoses,the detection rate rose to 96.0%,with 310 out of 323 cases identified.RESULTS This study yielded insights into the primary concerns of parents regarding their children's symptoms and validated the efficacy of a straightforward diagnostic test,offering valuable guidance for directing ADHD treatment,facilitating early detection,and enabling timely intervention.Our research delved into the predominant worries of parents across various age groups.Furthermore,we showcased the precision of the simple exclusion experiment in discerning between ADHD-I and ADHD-C in children.CONCLUSION Our study will help diagnose and guide future treatment directions for ADHD. 展开更多
关键词 Attention deficit hyperactivity disorder CHILDREN parents Direction of attention Simple test
下载PDF
Knowledge and practice skills on home-based urinary catheter care among parents of under-five children with urinary catheter
9
作者 Kurvatteppa HALEMANI Sanjay DHIRAAJ +3 位作者 Basant KUMAR Saadhat HUSSAN Premalata Prerna PAWAN Priyanshi Raviraj GUPTA 《Journal of Integrative Nursing》 2024年第1期29-34,共6页
Objectives:The objectives of this study were to assess the knowledge and practice skills on home-based urinary catheter care among parents of under-five children with urinary catheter.Materials and Methods:This cross-... Objectives:The objectives of this study were to assess the knowledge and practice skills on home-based urinary catheter care among parents of under-five children with urinary catheter.Materials and Methods:This cross-sectional study was conducted from June 1,2021,to September 11,2021,in a tertiary hospital in north India.Purposive sampling was used to select 50 participants.Three instruments were employed for data collection after fulfilling sample criteria;for baseline information demographic tool,knowledge questionnaires,and a practice checklist.Data were analyzed using descriptive and inferential statistics.Results:On assessment of 50 participants,the majority of parents aged above 30 years(74%).Most of the participants were male(82%),graduated(38%),and working in the private sector(58%).Similarly,two-thirds of participants were residing in a nuclear family(64%)with a single child 32(64%)and family income<5000 rupees per month(60%).The mean score of knowledge was 1.94±0.81 and that of practice skills was 1.98±0.85 on home-based care.Regression analysis showed that knowledge of parents was significantly associated with qualification(β:1.821,P=0.002).Similarly,association of practice skills of parents with gender(β:1.235,P=0.050)and qualification(β:1.889,P=0.00)was significant.Conclusion:The general findings of our study showed that parents’education and occupation played a significant role in a child’s care.Parental education and catheter care skills positively affect the child and reduce readmission rates. 展开更多
关键词 Home-based care KNOWLEDGE parents PRACTICE urinary catheter
下载PDF
Exact controllability of rational expectations model with multiplicative noise and input delay
10
作者 Wenjing Wang Juanjuan Xu +1 位作者 Huanshui Zhang Minyue Fu 《Journal of Automation and Intelligence》 2024年第1期19-25,共7页
This paper considers the rational expectations model with multiplicative noise and input delay,where the system dynamics rely on the conditional expectations of future states.The main contribution is to obtain a suffi... This paper considers the rational expectations model with multiplicative noise and input delay,where the system dynamics rely on the conditional expectations of future states.The main contribution is to obtain a sufficient condition for the exact controllability of the rational expectations model.In particular,we derive a sufficient Gramian matrix condition and a rank condition for the delay-free case.The key is the solvability of the backward stochastic difference equations with input delay which is derived from the forward and backward stochastic system. 展开更多
关键词 Rational expectations model Exact controllability Exactly null controllability Multiplicative noise Input delay
下载PDF
Exceeding Expectations
11
《ChinAfrica》 2024年第2期16-17,共2页
The Chinese economy continued to rebound and made solid progress in 2023,despite the complex international situation and numerous risks and challenges.The accelerated economic structural transformation and upgrade,cou... The Chinese economy continued to rebound and made solid progress in 2023,despite the complex international situation and numerous risks and challenges.The accelerated economic structural transformation and upgrade,coupled with increasing economic resilience,has resulted in various highlights. 展开更多
关键词 expectATION continued ECONOMIC
下载PDF
Keeping Commitments,Meeting Expectations
12
作者 HANNAH WANJIE RYDER CHEN HUIYI 《ChinAfrica》 2024年第9期38-40,共3页
How well is FOCAC meeting Africa’s aspirations for development?The idea of establishing the Forum on China-Africa Cooperation(FOCAC)in 2000 initially came from African countries,eager to coordinate and manage their r... How well is FOCAC meeting Africa’s aspirations for development?The idea of establishing the Forum on China-Africa Cooperation(FOCAC)in 2000 initially came from African countries,eager to coordinate and manage their relationship with China. 展开更多
关键词 China. expectATION establishing
下载PDF
Entangled relationship:Chinese parents’involvement in young learners’English tests
13
作者 GUO JIA CHENG LIYING 《语言测试与评价》 2024年第1期1-20,112,共21页
Young learners’English(YLE)tests have become increasingly prevalent among and important to Chinese English learners and their parents.In China,parents are actively involved in their children’s education and test-tak... Young learners’English(YLE)tests have become increasingly prevalent among and important to Chinese English learners and their parents.In China,parents are actively involved in their children’s education and test-taking decisions,and their participation has given rise to a series of social impacts.Although parent involvement has received increasing public and academic attention in newspaper and scholarly articles,there exists no thorough analysis of current research on parents’roles in young learners’test-taking.To address this gap,we systemically analyzed Chinese newspaper articles and academic articles between 2011 and 2021 to elicit Chinese parents’roles in YLE test-taking.Our thematic analysis of the literature identifies the ways in which parents influence their children’s test-taking experiences,and how the tests affect this influence.Specifically,our results elicit 1)parents’engagement in YLE testing;2)parents’understanding of the intended uses of YLE tests;3)parents’perception and consequences of their involvement in YLE testing;and 4)parents’backgrounds.This analysis reveals the popularity of YLE tests among young learners and their parents in China and public concern over test-related issues.It also broadens our understanding of YLE testing impact and suggests future potential research directions. 展开更多
关键词 young learners’English(YLE)tests in China parents’roles test impact
下载PDF
Studies on Endogenous Hormones and Nutritional Physiology Related to the Premature Senescence of Super-hybrid Rice Liangyoupeijiu and Its Parents at Late Growth Stage 被引量:3
14
作者 郭士伟 夏士健 +1 位作者 赵学强 朱虹霞 《Agricultural Science & Technology》 CAS 2014年第11期1914-1918,共5页
The amount of root bleeding sap, contents of chlorophyl , nutrients and hormones in flag leaves of a super-hybrid rice cultivar Liangyoupeijiu (LYPJ) and its parents 9311 and Pei’ai 64S after heading were measured ... The amount of root bleeding sap, contents of chlorophyl , nutrients and hormones in flag leaves of a super-hybrid rice cultivar Liangyoupeijiu (LYPJ) and its parents 9311 and Pei’ai 64S after heading were measured in this study. The re-sults revealed that compared with 9311, the chlorophyl content of LYPJ reduced more quickly after heading, and then kept at a lower level, which was an obvious characteristic of premature senescence. The other physiological indices of LYPJ af-ter heading except abscisic acid (ABA) content in leaf and root also maintained at a lower level than 9311, while al the physiological indices of the sterile line Pei'ai 64S were lower than LYPJ. So it was speculated that the early-aging characteristic of LYPJ may be inherited from Pei’ai 64S. Al the leaf and root early-aging traits reduced for LYPJ and its parent lines after heading, their leaf and root aged grad-ual y, which indicated that the above-ground (leaf) and under-ground (root) parts cor-related to each other closely, but there was not absolute correlations between them judged from the data. 展开更多
关键词 Super-hybrid rice parent lines Premature senescence Endogenous hormones Nutritional Physiology
下载PDF
Analysis on Grain Traits and Sedimentation Value of Wheat Genotype Heng 9966, Its Parents and Their Closely Related Varieties
15
作者 刘子会 孙书娈 +9 位作者 李强 赵明辉 李会敏 乔文臣 孟祥海 李丁 魏建伟 丁倩 郭秀林 赵凤梧 《Agricultural Science & Technology》 CAS 2017年第8期1378-1383,共6页
[Objective] 7 indictors of wheat genotype Heng 9966, its parents and their closely related varieties were analyzed based on the 1000-grain weight, sedimentation value and traits of selected grains in DUS test, so as t... [Objective] 7 indictors of wheat genotype Heng 9966, its parents and their closely related varieties were analyzed based on the 1000-grain weight, sedimentation value and traits of selected grains in DUS test, so as to provide references for the protection of variety intellectual property. [Method] Testing comparison and statistical analysis were conducted to the dormant seeds of winter wheat genotype 9966, parents of Liangxing 99 and Liangxing 96 aw well as the closely related variety of the parents, Jimai 22. [Result] Heng 9966 showed a difference of 2 codes in 1000-grain weight and sedimentation value from the above-mentioned 3 genotypes, and the variant analysis reached the extremely significant level of 0.01. And it also showed extremely significant difference at the level of 0.01 with Liangxing 66 in grain length, with Liangxing 66 and Jimai 22 in grain width, with Liangxing 66 in grain area, with Liangxing 66 and Jimai 22 in grain perimeter. [Conclusion] Heng 9966 had significant distinctness from its parents and their closely related variety, and grain shape can be used as a reference indicator for variety distinctness for the protection of variety intellectual property. 展开更多
关键词 WHEAT parents 1000-grain weight Sedimentation value Variety pro-tection
下载PDF
An Analysis of the Expectations Gap:Can it be eliminated?
16
作者 旷群 《海外英语》 2011年第1X期286-288,共3页
The "expectations gap" signifies the differences between what the public expects from an audit and what the auditing profession prefers the audit objectives to be.Although the gap exists,it seems that the pr... The "expectations gap" signifies the differences between what the public expects from an audit and what the auditing profession prefers the audit objectives to be.Although the gap exists,it seems that the professions trust that it could be eliminated.In this paper,further evidence was provided to deny the above point by exploring the inevitability nature and the structure of the audit expectation gap.In addition,the author concludes that expectations gap cannot be eliminated;instead,the only thing can be done is to narrow down the gap. 展开更多
关键词 expectATION GAP eliminate NARROW DOWN
下载PDF
课堂,是有格局的——评李洁老师Unit 5 Helping our parents(Story time)一课
17
作者 邰霞 《江苏教育》 2017年第57期53-53,共1页
聆听了李洁老师的课,让我相信:课堂,也是有格局的。一、仁爱的情怀,营造自由的心理氛围课堂心理气氛是课堂教学的软环境,是师生关系、生生关系的悄然反映,要营造这样的心理氛围,需要教师有海纳百川的胸襟,宁静致远的涵养,更需要教师有... 聆听了李洁老师的课,让我相信:课堂,也是有格局的。一、仁爱的情怀,营造自由的心理氛围课堂心理气氛是课堂教学的软环境,是师生关系、生生关系的悄然反映,要营造这样的心理氛围,需要教师有海纳百川的胸襟,宁静致远的涵养,更需要教师有仁爱的情怀。你看,李洁老师选的Monkey,Monkey,What are you doing?这首歌,内容和课文完全贴合。 展开更多
关键词 Story time Unit 5 Helping our parents
下载PDF
从孩子生命成长的高度出发——译林新版五下Unit 5 Helping our parents第一课时教学设计
18
作者 邰霞 《江苏教育(小学教学)》 2016年第7期126-128,共3页
【设计理念】 译林新版《英语》五下Unit 5 Helping our parents一课的话题是Family life和Housework。第一课时的story time从Mike的视角出发,以Saturday上午和下午的时间为顺序,分场景描述了六个人物和小狗Ben所做的事情,主要语法项... 【设计理念】 译林新版《英语》五下Unit 5 Helping our parents一课的话题是Family life和Housework。第一课时的story time从Mike的视角出发,以Saturday上午和下午的时间为顺序,分场景描述了六个人物和小狗Ben所做的事情,主要语法项目是正在进行时的特殊疑问句和肯定句。阅读教学中,培养学生的核心素养,教师需要让学生理解文本中的生活场景,搜集、理解基础信息,学习词、句、篇的语言范式。 展开更多
关键词 parents 第一课 译林 特殊疑问句 story Family 《英语》 语法项目 DOING 学习过程
下载PDF
Selection of Parents for Breeding Edible Varieties of Sweetpotato with High Carotene Content 被引量:28
19
作者 MA Dai-fu LI Qiang LI Xiu-ying LI Hong-min TANG Zhong-hou HU Ling CAO Qing-he XIE Yi-ping WANGXin 《Agricultural Sciences in China》 CAS CSCD 2009年第10期1166-1173,共8页
Sweetpotato varieties with high carotene content have high value for human health. This work aims to improve the breeding efficiency of special varieties with high carotene content by combining molecular markers and a... Sweetpotato varieties with high carotene content have high value for human health. This work aims to improve the breeding efficiency of special varieties with high carotene content by combining molecular markers and agronomic traits to evaluate and screen the parents. The cluster analysis was carried out to identify and screen promising parents by utilizing phenotypic results of the agronomic and characteristic traits, and RAPD and ISSR markers of 15 parents and their offspring by group crossing. Among different parental materials, greater variations were observed in two important traits, the carotene content and the storage root yield. Negative correlation was found between the carotene content and both fresh and dried root yields. The most significant positive correlation was between the carotene content of parents and that of their offspring, with the coefficient of correlation value of 0.7932**. The relationship based on the agronomic characters of the trial materials was not in agreement with the known genealogy, while that based on the molecular marker data showed better result. Each primer amplified 13.8 bands oflSSR markers on average, in which the rate of polymorphic loci was 89.6%. 9.4 bands of RAPD markers were arnplified per primer, in which the rate of polymorphic bands was 74.46%. Large genetic variation of carotene content was found among the parents. For analyzing the genetic diversity of sweetpotato, the molecular marker methods were better than morphological traits; ISSR markers were more efficient than RAPD markers. The combination of molecular markers and agronomic trait analysis may provide valuable theoretic basis for selection of parents to breed new varieties with high carotene content. 展开更多
关键词 SWEETPOTATO CAROTENE selection of parents RAPD ISSR cluster analysis
下载PDF
Expectations for English Teachers
20
作者 刘铁凤 《科技信息》 2009年第24期I0110-I0110,共1页
In the article,the author consciously compared American educational systems and the students'expectation of their teachers with their Chinese equivalents.An investigation about students'expectations towards th... In the article,the author consciously compared American educational systems and the students'expectation of their teachers with their Chinese equivalents.An investigation about students'expectations towards their teachers is done among college freshmen she was teaching.The result is both exciting and worrying.Through careful analysis and summary she has made,the author hopes it will arouse concerns of both teachers and students. 展开更多
关键词 英语教学 教学方法 英语教师 大学英语
下载PDF
上一页 1 2 250 下一页 到第
使用帮助 返回顶部